Tamper



Oct. 4,1927.

c. H. BLISS TAMPER Filed April 9, 1927 I N VEN TOR. Clyde/Z5121 I ATTORNEYS ltl .Patented Oct. 4, 1927.

TAMPER Application filed April 9,

The invention relates to tampers and has as an object the provision of a mechanical tamper adapted for use with sand-lime, or concrete brick machines. I

It is a further-object of the inventionto provide a tamper acting byits'own weight andassisted by revolution of a non-'cylindrt cal portion producing a' jarring action by virtue of the revolution thereof.

It is a further object of the invention to providea tamper having a parallel motion attachment to bring the 'tamping elements into the desired position for action.

It-is a further object of theinvention to provide a tamper having a continuousvro tatin'g part normally held out of tamping position and automatically brought to such position. by gravity, when the tamper is brought to position of'usel,

It is a still furtherobje ct of the invention "to provide a tamper adapted for use with a brick machine such as shown in prior patent to applicant No. 1,508,212, granted September 9,1924. 7 a, I I Further objectsof the invent-ion'will appear from the following description when read in connection with the accompanying drawings showing an illustrative embodiment of the invention and wherein: s

Figure 1 is. a detail side elevation of a portion of a brick machine having theta per of the present invention applied thereto;

' Fig. 2 is a detail central verticalsection on' line 2-2 of Fig. 1; and I Fig. 3 isa detail vertical section on line 33 of Fig. 2. The brick-machine of the former patent comprises a series of mold spaces 10 in which material for formation of bricks is automatically deposited by the machine and in which it is desired to tamp the material.

The tamper of the present invention comprises a series of bearing portions or feet 11 carried by a bar'12, the feet 11 being spaced apart a correct distance to enter the spaces 7 10, the superficial area of the feet being substantially'equal to the interior dimension of the spaces 10. i V

The bar 12 is shown as having upwardly projecting arms 13, 14, the two ends of said arms being provided with. slots 15, 16 for reception ofthe revoluble' member to produce the jarring action.

. The jarring member in the illustrated em bodimeiit comprises a rectangular bar 17 preferably square in cross section provided 1927. seriarnd. 132,430.

with cylindrical members 18 19 desirably r formed integrally therewith and projecting v throughthe slots'15, 1 6. g i

To cause revolution of the member 1 belt pulley 20, 21 is rigidly secured to each 0 the members 18, 19. The members 18, 19' are desirably journalled in blocks 22, 23iwhich have cylindrical ournal bearings, and an. outer formation fittingthe slotsi15, 16 and vertically slidable therein. t

The tamper is shown as mounted" upon arms 24, 25 journalled'upon the members 18 19 and pivoted upon the uprights 26'Of'tl1e machine.

actuation, the upper ends of projections"13 14: are shown as connected by means of links 27, 28, the opposite endsiofj'tl'ie linksbein'g pivoted as at 29 .tothe uprights 26. j

. v To provide parallel motionof the tamper when raised from and low-cred to position'for To'drive the rotating member 17, belts; one of which is shown at 30, arepassed about pul- 'leys 20, 21 and aboutpulleys, one of which is shown at31 rigidlymountedon' the 32 upon which the arms 24:, 25 a'remounted .fortheirfpivotal action. 'Afdri'ving' pulley 7 not shown is provided upon the shaft 32 for 2/ driving the belts andbyv virtue of the center of the belt pulleysgbeing located uponfthe cen.

ter of movement of the arms24, 25 the belts I 3O will at all'times have "the sametension whether the tamperis in or out of position for action. 1..

The arms 24, 25 are desirably extendedbe- -yon' ,d' the shaft 32 and provided withcounterat .83, to bal weights, one of which is shown ance the weight of the tamper. v Th tamper may be a' tomatically brought to operative position by'means of a link 84 connected to mechanism of the nature shown 7 in the former patent No. 1,508,212 above referredto.

To take the wear of the rotating member I 17 during its jarring action, the bar 12 is shown as shod with-a wear plate 35 desirably formed of hardened steelandgshown as secured to bar 12 by means of bolts 36,byremoval of which bolts the wear plate may be readily renewed when worn.

WVhen the'tamper is lifted out of operative position by the links 34, the weight of the tamper will cause the blocks 22, 23 to rise inth e slots 15, 16, thus liftingthe bar 17 from. contact with the wear plate 35 and the lie bar 17 may therefore be continuously r'otater during theoperatian at bottom of the slots by action of gravity upon without causing a jarring action upon the tamper except'while' it is lowered for use.

When the tamper is lowered to the posi-" tion shown in Fig; 1, the weight of bar 17 will cause the blocks 22, 23 to ride to the thebar 17, when the bar 17 will be caused to'ris e by contactatlits corners with the V'wiearplate85. and to. fall thereon to provide a series of momentum impacts which in'com- 'bination with the weight of the entire tamper providesga rapid tamping action upon the material in the spaces lO 7 -Minor changes may be made in thephysical'enibodiment oztthe invention ithin the sscope zof the appended claims without de- "partingfrom the spirit thereof.

7 MI claim:

1 1. (A, tamper comprising in combination, an impact shoe, a non-cylindrical member resting upon said shoe by gravity while the tamper is in action, means to revolve said i 'imember and means to.simultaneouslyflift said shoe. v

@Said member, from jarring position andto :12. A tamper comprising-in combination,

' it'roms i-mpacting positionand for lifting said f impact shoe, anon-cylindrical member adapted to rest upon saidslioe, means for causing revolution; of said member, means ford simultaneously lifting said member "shwihdmeans t P vide a parallel m0- QP Mfi e' position. a VA l -(tion, of the shoewhen 'moved'from and to a -bar, 1a plurality- .of impacting shoes mounted in saidways and adapted'to rest n operatiyer position, and means acting {through said member to'raise the member "ingth'e ways and'to'raise said bar from p'er- :ative' position.

' 4. A tamper compris'in gfin combination, I

j gtamper' comprising in combination,

a bar, an impact shoe projecting from one side of said bar, arms projecting from the opposite side of said bar and llELVlIlg slots,'-

a polygonal bar having cylindrical portions rotatable and slidable in saidslots, means for rotating said lastnamed bar and means for lifting the tamper from operative position acting upon said portions wherebyto also lift said portions in said slots, contact between said'bars preservedby gravitation Whenthe impact shoe rests upon material to be tamped. r

5. A tamper comprising in combination, a frame comprising a'body and spaced slotted arms projecting from one side thereof,

an impact shoe projectingfroin the opposite side of said frame, a wear plate mounted on said body, a polygonal bar-bearing on said plate during operation or the'tamper and having cylindrical portions journalled in the slots of said arms, means to revolve said barto cause jarring action of said frame, meansacting onsaid bar to lift the po1't1ons-.1n"the slots and by engagement with the upper'ends of said slots toli-ft thcframe out of operative position whereby the bar may be continuously rotated"Without jarringaction when thei tam-per is lifted to inoperative position.

6. A tamper comprising in combination,

a frame comprising. a body andspaced slqt ted arms projecting from one side "thereof, a tampingshoe PIOJCtlIlg from theTofp'posite side of the frame, journal blocks slid, able in-the slots of said arms, a wear: plate carried by saicl"body, a polygonal "bar having cylindrical portions'journalled in said y 3 blocks, said'bar resting by gravity onsaid plate duringtamping action, means to re 'vo'lve said bar, means'fiacting" through. said bar cylindrical portions to "first liftflthebar from contactiw'ith said plate and i'con- 'tinued movement to. lift the framefrom 9O tamping position during continued revolution ofthebar. Y CLYDE H, BLISS, 

